Simplified and improved monitoring traps for sampling sand flies
Simplified and improved monitoring traps for sampling sand flies
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DOI:
10.1111/j.1948-7134.2011.00188.x
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发表时间:
2011-12-01
影响因子:
1.7
通讯作者:
Beier, John C.
中科院分区:
文献类型:
--
作者:
Mueller, Guenter C.;Revay, Edita E.;Beier, John C.
Almost every attempt to study natural behavior in the field or the outcome of applied control of sand flies involves intensive population sampling (Alexander and Maroli 2003). The three standard surveillance techniques for adult phlebotomine sand flies are human landing collections, sticky papers, and CDC light trap collections (Killick-Kendrick 1987). Human landing collections often attract the largest number of sand flies (Hanafi et al. 2007) but catches depend on the skill and attractiveness of the individual collector and often expose collectors to an increased risk of Leishmania infections. Accordingly, CDC light traps (either with or without CO 2) and sticky papers (with or without lights) have become the standard surveillance techniques (Hoel et al. 2007, Orshan et al. 2010). Carbon dioxide is the single most powerful attractant for blood questing sand flies, but for practical reasons it is often not used (Killick-Kendrick 1987).Numerous methods and trap designs for sand fly collection have been reviewed by Alexander (2000). Non-attractive traps, like simple sticky papers and unlighted, un-baited CDC traps, only catch flies from their immediate area and accordingly, tend to yield relatively low numbers of sand flies (Burkett et al. 2007). In contrast, CDC traps equipped with incandescent or UV light catch significantly more sand flies than unlighted traps and from distances up to several meters (Killick-Kendrick et al. 1985). Light, especially of a short wavelength like UV, though generally regarded as an attractant, is upsetting the orientation of night active flying insects rather than attracting them in a classical sense (Nowinszky 2004). Female and male sand flies with compromised orientation are drawn into the direction of the light source and are disabled to avoid capture mechanisms of traps (Junnila et al. 2011).